Merge pull request #405 from NicoleRauch/master

Minor UI tweaks
minifix in colorpicker
unused file flush
login dialog inputfield tweak
unused file flush
unused code
login dialog now with accordion
moved most custom client scripts to agora.js
adapted frontendtests to new agora.js
Merge pull request #406 from leider/master

cleanups
testing experimental caching of sympa information
Update README.md
updated jade files for compliance (minor Layout)
Merge pull request #408 from leider/master

updated jade files for compliance (minor Layout)
updated own version and that of many prerequisites, small UI tweaks
moved markdown cheat sheet to own file for own request to make standard page smaller
Merge pull request #410 from leider/master

updated own version and that of many prerequisites, small UI tweaks
Nicer layout of date and time boxes, prepare row for error message.
Error is now shown in a full line below the date and time fields. Datepicker now validates after click on calendar.
Everything works nicely for the datePicker now -- but the timePicker seems to be broken...